Category: Completed Projects
Group: Ultra-High Performance Concrete (UHPC)
Subject: PI girders
State: Iowa
Abstract:

The Jakway Park Bridge in Buchanan County, Iowa is the first bridge constructed with a new prestesssed girder system composed of precast Ultra-High Performance Concrete (UHPC). These girders employ an integral deck to facilitate construction and are referred to as pi-girders for the resemblance of their cross-section to the Greek letter, “?”. The evolution of the girder geometry, simplifying assumptions, and finite element analysis techniques used in design of the bridge are examined, and the results of laboratory and live load field testing are presented to quantify behavior. The effectiveness of the finite element analysis and structural performance of the bridge, including live load distribution, are evaluated to provide guidance for future designs employing these girders.

Key Words:

Bridge tests, concrete bridges, field tests, high-strength concrete, load tests, precast concrete, prestressed concrete, steel fibers, UHPC, ultra-high performance concrete

Specific ABC aspect:

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Budget and Timeline

Budget (USD): 0.00
Project length: 0
Project Starting Year: 2007
Project Completion Year: 2010

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Primary Sponsor

Iowa Department of Transportation
800 Lincoln Way
Ames, IA 50010 USA

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Primary Performing Organization

Iowa State University
Center for Transportation Research and Education
2711 South Loop Drive, Suite 4700
Ames, IA 50010 USA

PI: Terry Wipf
515-294-6979
tjwipf@iastate.edu

Co-PI: Brent Phares
515-294-5879
bphares@iastate.edu

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Other Documents

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Other Related URLs

Go to: http://www.intrans.iastate.edu/research/projects/detail/?projectID=943621873